On a related note, is this still a one time limited edition or a regular limited release because I'm still seeing them restocked on shelves?

Thanks for the link. I'm pretty sure it was/is a limited edition as Glenlivet says they no longer use that particular "Triumph" barley. My guess would be that it's a pretty low velocity item in most retail outlets and that's why it's still around.

Re: Glenlivet Nadurra 1991 Triumph

What I've read about the "Triumph" seems to be true. It definitely has more wood too it and is drier with less creamy fruit than the 16-year old Nadurra. Definitely good though. Not sure if I prefer it over the 16-year. I'd have to have both side by side to compare.